Technical field
[0001]
Technology disclosed herein relates to sound collecting device used by mounting on the user's ear.
BACKGROUND
[0002]
Recently,-ear sound collecting device used by mounting on the user's ear has been spread. -Ear sound collecting device may be, for example, binaural (binaural) recording. Binaural recording, the head and body of each user, in consideration of individual differences, such as the shape of the earlobe is to record the sound close to the state reaching the eardrum of the individual user (known). When a voice that is binaural recording to listen in earphones or headphones, it is possible that if it were to reproduce the realism, such as if it had happened on the scene at the time of recording. Further, based on the audio signals binaural recording, the head and body of each user, HRTF representing the change in the sound generated in response to diffraction or reflection of influence of each part of the human body such as the earlobe (Head-Related Transfer Function: HRTF) can be obtained. For example, by convoluting HRTF the audio signal reproduced from the normal sound (dry source), it is possible to sound image localization in a virtual, to reproduce the realistic sensation.
[0003]
　As another application of the-ear sound collecting device, for example in combination with wearable audio output device, such as earphones or headphones, and also such as to perform the noise canceling.
[0004]
　Although already several proposals for technology for binaural recording using-ear devices have been made (for example, refer to Patent Documents 1 and 2), sound pickup user, such as the most microphone is located outside the ear canal, also the device body has a sealed structure for closing the ear hole of the user almost completely.
CITATION
Patent Document
[0005]
Patent Document 1: JP 2004-128854 Patent Publication
Patent Document 2: JP-T 2008-512015 Patent Publication
Summary of the Invention
Problems that the Invention is to Solve
[0006]
　The purpose of the technology disclosed herein is to provide an excellent sound pickup device used by mounting on the user's ear.
Means for Solving the Problems
[0007]
　Technology disclosed herein has been made in consideration of the above problems, a sound pickup unit has an acoustically transparent portion, and a holding portion for holding the sound pickup by the user's ear canal a sound pickup device including.
[0008]
　The holding portion is comprised of one or more arms for supporting a ring member having an opening serving as the acoustically transparent portion, the sound collection unit at the other end with one end connected to the ring member. Then, the ring member is inserted into the user's cavum conchae are locked near the tragus and chopped marks.
[0009]
　Alternatively, the holding portion has a vent as the acoustically transparent portion, made of an elastic material such as sponge.
[0010]
　Alternatively, the holding portion consists of one or more arms for supporting the star-shaped body having an opening as the acoustically transparent portion, the sound collection unit at the other end with one end connected to the star-shaped body.
[0011]
　Whether in a configuration wherein the holding portion is basically to hold the sound pickup toward the outer side of the ear canal microphone hole. Then, the holding unit holds the sound pickup as microphone hole becomes deeper side than the entrance of the ear canal.
[0012]
　Further, the sound pickup apparatus may further include a sound output unit.
[0013]
　The sound collection device when mounted on the user's ear, configured so that the relative positions of the acoustic output hole and the sound pickup of sound pickup hole of the sound output unit is kept constant. Further, when mounting the collection device on the user's ear, configured to sound output hole of the acoustic output unit is disposed on the outer side of the ear than the sound pickup sound pickup hole.
Effect of the invention
[0014]
　According to the technology disclosed herein, it is possible to provide an excellent sound pickup device used by mounting on the user's ear.
[0015]
　Note that the effect described herein is merely illustrative, the effect of the present invention is not limited thereto. Further, the present invention is, in addition to the above effects, in some cases exhibit a further additional effect.
[0016]
　Other objects, features and advantages of the technique disclosed herein, will become apparent from the following detailed description based on embodiments and the accompanying drawings described below.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017]
[1] Figure 1 is a diagram showing the external structure of the-ear sound collecting device 100.
FIG. 2 is a diagram showing an external configuration of-ear sound collecting device 100.
FIG. 3 is a diagram showing an external configuration of-ear sound collecting device 100.
[4] FIG. 4 is a diagram showing the external structure of the-ear sound collecting device 100.
FIG. 5 is a diagram showing the pinna fitted with a sound pickup device 100 into the ear canal (left ear).
FIG. 6 is a cross-sectional view of the head of the user wearing the sound collection device 100 in the ear hole of the left ear.
[7] FIG. 7 is a diagram showing an external configuration of a sound collecting device 700 of the-ear.
[8] FIG. 8 is a cross-sectional view of the head of the user wearing the sound collecting device 700.
[9] FIG. 9 is a diagram showing an external configuration of a sound collecting device 900-ear.
[10] FIG 10 is a diagram showing a state of mounting the sound collection device 900 in the ear canal of the user.
[11] FIG. 11 is a front view of a sound output function and collection device 100 (for the right-ear).
[12] FIG 12 is a perspective view of a sound output function and collection device 100 (for the right-ear).
[13] FIG 13 is a diagram showing a state of mounting the sound output function and collection device 100 to the user's right ear.
[14] FIG 14 is a diagram showing each of a top view and a cross-sectional view of the ring member 1121 coupled with the vicinity of the other end of the sound guide portion 1152.
[15] FIG 15 is a diagram ring body 1121 showed horizontal section near the left ear of the user's head, which is engaged with beads and chopped scars left ear.
[16] FIG 16 is a diagram showing an external configuration of a sound collecting device 1600 with the acoustic output unit.
[17] FIG 17 is a diagram showing an external configuration of a sound collecting device 1600 with the acoustic output unit.
[18] FIG 18 is a diagram showing an external configuration of a sound collecting device 1600 with the acoustic output unit.
[19] FIG 19 is a diagram showing an external configuration of a sound collecting device 1600 with the acoustic output unit.
[20] FIG 20 is a diagram showing an external configuration of a sound collecting device 1600 with the acoustic output unit.
[21] FIG 21 is a diagram showing a cross section of the sound output section 1650.
[22] FIG 22 is a diagram showing a cross section of the sound output section 1650.
[23] FIG 23 is a diagram showing a state of mounting the sound output function and collection device 1600 to a user's left ear.
[24] FIG 24 is a diagram showing an external configuration of a sound collecting device 2400 with the acoustic output unit.
[25] FIG 25 is a diagram showing an external configuration of a sound collecting device 2400 with the acoustic output unit.
FIG. 26 is a diagram showing an external configuration of a sound collecting device 2400 with the acoustic output unit.
[27] FIG 27 is a diagram showing an external configuration of a sound collecting device 2400 with the acoustic output unit.
FIG. 28 is a diagram showing an external configuration of a sound collecting device 2400 with the acoustic output unit.
[29] FIG 29 is a diagram showing an external configuration of a sound collecting device 2400 with the acoustic output unit.
FIG. 30 is omitted sound pickup unit and the mounting portion of the collecting apparatuses 2400, is a diagram showing the (acoustic output) front view of the sound output unit.
[31] FIG 31 is a diagram showing a state of mounting the sound output function and collection device 2400 to a user's left ear.
FIG. 32 is a diagram showing an external configuration example of a sound collection device having a holding portion which is a C-shape.
FIG. 33 is a diagram showing an external configuration example of a sound collection device having a holding portion which is a C-shape.
[34] FIG 34 is a diagram showing the shape and names of each part of the auricle.
DESCRIPTION OF THE INVENTION
[0018]
　It will be described in detail embodiments of the technology disclosed herein with reference to the drawings.
Example 1
[0019]
　In FIGS. 1-4, the-ear sound pickup apparatus 100 according to an embodiment of the technology disclosed herein shows a state viewed from different angles.
[0020]
　Figure 1 is a sound collection device 100 front direction (or the direction to see the sound collecting device 100 in which the posture when attached to the ear canal of the user from the outside of the ear) is a front view viewed from. Also, FIG. 2 is a side view viewing the sound pickup apparatus 100 in the direction of arrow A in FIG. 1, FIG. 3 is a side view viewing the sound pickup apparatus 100 in the direction of arrow B in FIG. 1 is there.
[0021]
　As shown in the figures, the sound collection device 100 includes a sound pickup 110 consisting of a microphone, and a holder for holding the sound pickup unit 110 in the ear canal. Holding portion (in other words, has an opening for transmitting sound) hollow ring body 121 (in the illustrated example, three arms) a plurality of arms which supports the sound pickup unit 110 consists of 122-124 It is. Each arm 122 to 124, supports the sound pickup unit 110 at the other end with each connecting the ring member 121 at one end. As sound pickup unit 110, for example, assumes a diameter 2.5 mm approximately cylindrical. Incidentally, the ring member 121 and the arm 122 to 124, be an integral molded part of the same material such as a resin may be a component of the material was molded two-color different materials.
[0022]
　Here, the holding unit holds the sound pickup unit 110 in the ear canal is that the microphone hole 111 serving as a sound pickup hole holds the sound pickup unit 110 so that the rear side than the entrance of the ear canal (eardrum side) It means. Although ear canal forms a cylindrical draw curves of the S-shaped holding portion holds the sound pickup unit 110, for example, from the entrance of the ear canal at the back of the position within 15 millimeters deep. The holding portion preferably holds the sound pickup unit 110 at a position to disengage the nodes of the standing wave occurring in the external auditory canal to form a cylindrical shape.
[0023]
　Ring body 121 is a dimension of, for example, about 13.5 mm, can be attached to the user of the cavum conchae. In the example shown in FIG. 1 and the like, the ring body 121, with or without straight portions and curved portions, the shape of a ring, such as O-shaped closed with no cut portion (hereinafter, simply referred to as "O-shaped configuration" ) has a. However, the ring body, as shown in FIGS. 32 and 33, with or without straight portion and curved portion, shaped like a C-shaped open with the cutting portion (hereinafter, both simply "C-shape" a means), it may have a shape that is engaged cavum conchae. Although there are individual differences in the size of the cavity of the concha, the outer diameter (or width) of the ring member 121 when greater than 16 mm, many people are unable to insert the ring member 121 to the cavum conchae Become. Minimum in the state of mounting the ring member 121 in the cavity of the concha, the state in which the sound collection unit 110 is floating in the fully air without contacting with the inner wall of the ear canal, or contact with the inner wall of the sound pickup section 110 and the ear canal and so that sound collection unit 110 is preferably supported by the arms 122-124. The sound collection unit 110, the sound collection direction (or microphone hole 111), the back side of the ear canal (i.e., the eardrum side) rather than the inner wall of the or ear canal, to face the entrance direction of the ear canal (i.e. outside) to, and is supported by the arms 122-124. Therefore, the sound collection unit 110 may be suitably pick up ambient sound that has transmitted to the ear canal. Figure 4 is a front view viewing the sound collection device 100 in a posture substantially center sound pickup unit 110 is visible in the hollow ring body 121.
[0024]
　Figure 5 shows the pinna (left ear) equipped with a sound collection device 100 in the ear canal. Ring body 121 is preferably inserted into the cavity of the concha is locked in to the auricle so caught by the beads and chopped scars V-together contacts the bottom surface of the cavity of the concha. In this way, the collection device 100 is preferably mounted to the pinna.
[0025]
　Ring body 121 is a hollowed structure, almost all of the inner is opening. Therefore, even when the ring member 121 is inserted into concha cavity, it does not block the ear canal of the user. In other words, the ear canal of the user is open, the sound collection device 100 are ear hole open, it can be said to have a sound permeability.
[0026]
　Further, in FIG. 6 is a longitudinal sectional view taken along the coronal plane to pass through the user's head wearing the sound collection device 100 in the ear hole of the left ear, the ear canal. As shown in FIG. 6, the sound collection unit 110 so as to protrude toward the ring body 121 on the rear side of the ear canal (eardrum side), and is supported by the arms 122-124. As microphone hole 111 is deeper side than the entrance of the ear canal (eardrum side) should sound pickup unit 110 is understood that it is retained. The sound collection unit 110, that is floating in the fully air without contacting with the inner wall of the ear canal, or, as contact with the inner wall of the ear canal is minimized, that is supported by the arms 122-124 It is to be understood. Ring body 121 to have a suitable size and a suitable elastic, improves the fit of the user.
[0027]
　In Figures 1-6, only it shows the left and right of one of the sound collecting device 100, by mounting the left and right pair of sound collecting device 100 to each ear of the left and right user, that binaural recording is performed It is to be understood. Moreover, none of the Figures 1-6 is omitted for convenience of illustration of the signal lines for input and power supply of the audio signal (cable).
[0028]
　As can be seen from FIG. 6, according to the sound collecting device 100 according to this embodiment, in a state of being mounted near the entrance of the external auditory canal of the user (cavum conchae), the sound pickup unit 110 is supported by the ear canal and it has a configuration that. The sound collection unit 110, a plurality of arms 122-124 connected to the ring body 121 having a hollow or opening, the sound collection direction (or microphone hole 111) is supported in a direction facing the outer of the ear canal it is a structure. That is, the holding portion of the sound pickup 110 of the ring member 121 and the arm 122 to 124, it can be said that it acoustically transparent in the ear canal open.
[0029]
　Thus, ambient sound of the user to be picked up can reach the sound collection unit 110 passes through the holding portion of the ear hole open, suitably picked up. The sound collection unit 110, rather than outside the ear canal, because it is supported by the closer to the eardrum within the external auditory canal, it is possible to pick up ambient sound in the near state by the sound that the user hears.
[0030]
　The change in the ambient sound, the user's head or body, not only the influence of the commentary and reflection from the surface of the human body such as the earlobe, diffraction or reflection at the inner wall of the ear canal, caused by further influence of reflection from the tympanic membrane obtain. According to the sound collecting device 100 according to this embodiment, the sound collection unit 110 since it is disposed in the ear canal, realizing a binaural recording in consideration of the influence of reflection from the diffraction and reflection, tympanic membrane in the inner wall of the ear canal it can, it is possible to reproduce the realistic with higher accuracy. Further, according to the sound collecting device 100 according to this embodiment, the head and body of each user, as well as each part of the human body such as the earlobe, in consideration of the influence of the reflected sound from the ear canal shape and the eardrum, it is possible to determine the accurate HRTF representing the change in sound.
[0031]
　Figure 7 is a ear hole open, and can support the sound pickup unit inside the ear canal, shows an example external configuration of another collection device 700. Further, in FIG. 8, the user's head wearing the sound collecting device 700 to the ear of the left ear, and a longitudinal sectional view taken along the coronal plane to pass through the ear canal. Incidentally, any of Figs. 7 and 8, are omitted for convenience of illustration of the signal lines for input and power supply of the audio signal (cable). Further, in FIGS. 7 and 8, but shows only the left and right of one of the sound collecting device 700, by mounting the left and right pair of sound collecting device 700 to each ear of the left and right user, that binaural recording is performed It is to be understood.
[0032]
　Sound pickup apparatus 100 shown in FIG. 1, etc., using a holding portion made of a ring member 121 and the arms 122-124 which has an opening, with the fully floating in the air without contacting with the inner wall of the ear canal (or, contact with the inner wall of the ear canal to support the way) collecting sections 110 is minimized, and ensure and sound transmission in the ear canal open. In contrast, the sound collecting device 700 shown in FIG. 7, the sound collection unit 710, composed of the holding portion 720 having a vent, such as a sponge. Holding portion 720 covers the outside of the sound pickup unit 710, and has a cylindrical shape with an outer diameter. Further, it is assumed as a sound collection unit 110, for example, a diameter of 2.5 mm approximately cylindrical (Id.).
[0033]
　Then, in the mounted state shown in FIG. 8, although the sound collection device 700 is engaged around the first curve of the ear canal, in a condition fully floating in the air without contacting with the inner wall of the ear canal (or, the inner wall of the ear canal contact is so) collecting sections 710 becomes minimized is supported with. 8, the sound collection device 700, like the sound collecting device 100 shown in FIG. 1, will appreciate that it is secured to and sound transmission in the ear canal open. Also, as in 711 of the microphone hole serving as sound collection hole is deeper side than the entrance of the ear canal (eardrum side) should sound pickup unit 710 is understood that it is retained. Ear canal forms a cylindrical draw curve S-shaped, but the holding unit 720 holds the sound pickup unit 710, for example, from the entrance of the ear canal at the back of the position within 15 millimeters deep.
[0034]
　Sound pickup unit 710 is not outside the ear canal, because it is supported by the closer to the eardrum within the external auditory canal, it is possible to pick up ambient sound in the near state by the sound that the user hears. The sound collection unit 710, since it is disposed in the ear canal, diffraction and reflection at the inner wall of the ear canal, it is possible to realize a binaural recording in consideration of the influence of reflection from the tympanic membrane, realistic higher precision it is possible to reproduce the. Therefore, according to the sound collecting device 700, the head and body of each user, as well as each part of the human body such as the earlobe, in consideration of the influence of the reflected sound from the ear canal shapes and eardrum, representing a change in sound it is possible to determine the precise HRTFs.
[0035]
　In the mounted state of the sound pickup apparatus 700, the sound collection direction of the collected sound unit 710 (or microphone hole 711) is preferably is directed to the outside of the ear canal. The sound collection direction of the collected sound unit 710 may also be referred to as the back side of the ear canal (i.e., the eardrum side) be directed to the outside of the ear canal than face the inner wall of the or ear canal preferable. The holding portion 720 having a vent is to have a suitable size and a suitable elastic, improves the fit of the user.
[0036]
　Figure 9 is a ear hole open, and can support the sound pickup unit inside the ear canal, and further shows an external configuration example of another collection device 900. Further, in FIG. 10 shows a state of mounting the collection device 900 to the ear canal of the user. Incidentally, any of FIGS. 9 and 10, are omitted for convenience of illustration of the signal lines for input and power supply of the audio signal (cable). Further, in FIGS. 9 and 10, it shows only the left and right of one of the sound collecting device 900, by mounting the left and right pair of sound collecting device 900 to each ear of the left and right user, that binaural recording is performed It is to be understood.
[0037]
　Collecting apparatus 900 shown in FIG. 9, a sound pickup unit 910, composed of the holding unit having an opening without a frame structure. Holding portion is hollow and (in other words, the opening has a for transmitting acoustic) asteroid 921, (in the illustrated example, five arms) a plurality of arms which supports the sound pickup unit 910 at 922-926 constructed. Each arm 922-926 is configured to coupled with each vertex of the asters 921 at one end, respectively, support the sound pickup unit 910 at the other end. Further, it is assumed as a sound collection unit 910, for example, a diameter of 2.5 mm approximately cylindrical (Id.).
[0038]
　Asteroid 921, an inner diameter of the same size in the vicinity of the entrance of the ear canal, as shown in FIG. 10, it is possible to mount the sound collection device 900 in the ear canal entrance. Then, in a state of being mounted on the entrance of the ear canal asteroid 921, the state in which the sound collection unit 910 is floating in the fully air without contacting with the inner wall of the ear canal, or contact with the inner wall of the sound pickup unit 910 and the ear canal as a minimum, the sound collection unit 910 is supported by the arms 922-926. Therefore, the sound collection device 900 also will appreciate that to ensure and sound transmission in the ear canal open. Further, as a microphone hole 911 serving as a sound pickup hole becomes deeper side than the entrance of the ear canal (eardrum side) should sound pickup unit 910 is understood that it is retained. Although ear canal forms a cylindrical draw curves of the S-shaped holding portion holds the sound pickup unit 910, for example, from the entrance of the ear canal at the back of the position within 15 millimeters deep.
[0039]
　Insert the ear canal of the user to indicate the sound collecting device 900 in FIG. 10, the arms 922 to 926 of the holding portion of the frame structure is deformed into an elongated shape is crushed by the inner wall of the ear canal. At that time, asteroid 921 is deformed to close. Holding portion of the frame structure to have suitable dimensions and suitable elastic, improves the fit of the user. Incidentally, asteroid 921 and arms 922 to 926 can be an integral molded part of the same material such as a resin may be a component of the material was molded two-color different materials.
[0040]
　The shape of the frame structure of the holding portion is optional, functional or designing the shape in terms, or may be from a design standpoint as or designed in the form that emphasizes aesthetics. For example asters 921 may not be good, or star-shaped in hexagonal star rather than a pentagonal star.
[0041]
　Sound pickup unit 910 is not outside the ear canal, because it is supported by the closer to the eardrum within the external auditory canal, it is possible to pick up ambient sound in the near state by the sound that the user hears. The sound collection unit 910, since it is disposed in the ear canal, diffraction and reflection at the inner wall of the ear canal, it is possible to realize a binaural recording in consideration of the influence of reflection from the tympanic membrane, realistic higher precision it is possible to reproduce the. Therefore, according to the sound collecting device 900, the head and body of each user, as well as each part of the human body such as the earlobe, in consideration of the influence of the reflected sound from the ear canal shapes and eardrum, representing a change in sound it is possible to determine the precise HRTFs.
[0042]
　Incidentally, the sound collection unit 910, the sound collection direction (or microphone hole 911) is, the back side of the ear canal (i.e., the eardrum side) rather than to face the outside world, and is supported by the arms 922-926. Therefore, the sound collection unit 910 may be suitably pick up ambient sound that has transmitted to the ear canal. Incidentally, the sound collection direction of the collected sound unit 910 may also be referred to as the back side of the ear canal (i.e., the eardrum side) be directed to the outside of the ear canal than face the inner wall of the or ear canal preferable.
Example 2
[0043]
　11 to 13, according to another embodiment of the technology disclosed herein, there is shown an exemplary configuration of a sound collecting device 1100 with the acoustic output unit. Figure 11 is a front view of a sound output function and collection device 1100 (for the right-ear), FIG. 12 is a perspective view of a sound output function and collection device 1100 (for the right-ear), FIG. 13 shows a state of mounting the sound output function and collection device 1100 to a user's right ear. In FIGS. 11 to 13, only it shows the left and right of one of the collecting apparatuses 1100, wearing the right pair of sound collecting device 1100 to each ear of the left and right user, realizing a binaural recording and binaural playback it is to be understood that.
[0044]
　Collecting apparatus 1100 includes a sound collection unit 1110, and a holding portion for holding the sound pickup unit 1110, and a sound output section 1150. In the illustrated collection device 1100, sound collection unit 1110 and the holding portion has almost the same configuration as the sound collecting device 100 shown in FIG. That is, the sound collection unit 1110 is, for example, a microphone and a diameter of 2.5 mm approximately cylindrical. The holding portion (in other words, the opening has a for transmitting acoustic) hollow ring body 1121, constituted a plurality of arms 1122 ... in supporting the sound pickup unit 1110. In the illustrated example, the ring member 1121, although the O-shaped configuration, may be in the form of a C-shaped. Each arm, at the other end with each connecting the ring member 1121 with one end, the sound collection direction (or microphone hole 1111 serving as a sound pickup hole) is supporting the sound pickup unit 1110 in posture facing out of the ear canal ing. Incidentally, the sound collection direction of the collected sound unit 1110 may also be referred to as the back side of the ear canal (i.e., the eardrum side) be directed to the outside of the ear canal than face the inner wall of the or ear canal preferable.
[0045]
　That sound pickup unit 1110 has an acoustically transparent in the ear canal open, is supported by a closer to the eardrum within the ear canal, that it can pick up ambient sound in the near state by the sound that the user hears, and, for each user the head or body, not only the part of the human body such as the earlobe, consideration of the effects of reflected sound from the ear canal shape and tympanic membrane that it is possible to obtain the binaural recording and head-related transfer function, as shown in FIG. 1 is as already described with reference to such.
[0046]
　In order to ensure the feature of having a sound transmission in the ear canal open collecting sections 1110, sound output unit 1150 to be combined to the sound collection unit 1110 also has a feature that likewise acoustically transparent. For ear canal open acoustic output device, for example the applicant has already been described in 2016-39004 Japanese Patent Application No., which is assigned to, and includes an audio output unit 1150 similar configuration according to the present embodiment there.
[0047]
　Audio output unit 1150 includes a sound generating unit 1151 for generating a sound, the sound guide portion 1152 for outputting toward the entrance of the ear canal from the other end fetches sound generated from the sound generating portion 1151 from one end. Sound guide portion 1152 at the other end near an open end, it is bonded to the ring body 1121 of the holding portion described above.
[0048]
　Sound generating unit 1151, a diameter of about 16 mm, a dynamic driver (or electrostatic driver or piezoelectric drivers) because it utilizes the sound device produces a sound pressure changes, such as, at the time of sound generation of the sound generating unit 1151 change in air pressure within the housing is produced. Accordingly, the housing at least one exhaust hole for releasing (back cavity) to high pressure generated (front cavity opposite phase sound) out of the housing (not shown) in such rear side of the housing They are bored.
[0049]
　Sound guide portion 1152 has an inner diameter 1-5 mm hollow (e.g., cylindrical) a tubing of, both ends are both open ends. One end of the sound guide portion 1152 is a sound input hole of sound generated from sound generating unit 1151, and the other end has its audio output hole. Thus, by one end attached to the sound generating unit 1151, the sound guide portion 1152 has a one-side open. For example, it is possible to manufacture a sound guide portion 1152 of a resin having elasticity such as an elastomer.
[0050]
　Tubular sound guide portion 1152 is bent in substantially U-in near the middle, has a bent shape folded back from the rear side of the auricle on the front side. Accordingly, as shown in FIG. 13, when fitted with a sound pickup device 1100 to the user's ear, while the sound output hole of the sound guide portion 1152 is disposed near the entrance of the ear canal by holding unit, sound generating unit 1151 ear It is arranged on the back side of the intervention. Sound guide part 1152, folded at the lower end of the auricle by bent shape, the air vibrations taken from the sound generation section 1151 of the back side of the auricle can be propagated to the front side of the auricle.
[0051]
　The other end of the sound guide portion 1152 is coupled with one point of the inner surface of the ring body 1121 of the holding portion. In the example shown in FIG. 13, the ring member 1121 is inserted into the concha cavity, in contact with the bottom surface of the cavity of the concha. Also, the sound guide portion 1152 coupled with the ring member 1121 passes through the valley of the beads and chopped marks. Then, the ring member 1121 as sound guide portion 1152 is caught in the valleys of the beads and chopped mark is locked to the inner wall of the beads and chopped marks or tragus, and collecting apparatus 1100 is suitably attached to the auricle that. In a state where the ring body 1121 is sound guide portion 1152 while being accommodated in concha cavity is locked so as to pass through the valley of the beads and chopped mark, the sound output holes ear canal of the other end of the sound guide portion 1152 as a posture facing the entrance, the ring body 1121 supports the vicinity of the other end of the sound guide portion 1152.
[0052]
　When wearing the collecting apparatus 1100 to the user of the cavum conchae, and sound output hole of the audio output unit 1150, the relative position between the microphone hole 1111 is a sound pickup hole collecting sections 1110 is kept constant It is to be understood that. Further, when mounting the sound collection device 1100 to a user of the cavum conchae, the sound output holes of the audio output unit 1150, than microphone hole 1111 is a sound pickup hole collecting sections 1110, outer ear hole of the user is disposed, it is to be understood that. Microphone hole 1111 is basically are arranged substantially at the center of the opening of the ring body 1121.
[0053]
　Sound guide part 1152, is the purpose of propagating air vibration, preferably an inner diameter as large as possible. On the other hand, as shown in FIG. 13, it passes through a valley of beads and chopped marks near the sound guide portion 1152 and the other end. Therefore, when the outer diameter of the sound guide part 1152 to more than beads and chopped scars gap (e.g., 3.6 mm), it is concerned to provide tightness to the user's ear for cleavage of beads and chopped mark is widened.
[0054]
　Ring body 1121, a hollowed structure, almost all of the inner is opening. The outer diameter of at least near the other end of the sound guide portion 1152 is formed to be smaller than the inner diameter of the ear canal (near the entrance of the ear canal). Therefore, even when the ring body 1121 is inserted into concha cavity, it does not block the ear canal of the user. The acoustic generating unit 1151, because it is arranged at a location spaced from the ear, such as the back of the user's ear, the sound output section 1150, the ear canal of the user can be said to be open. That is, the sound collection device 1100 with the audio output unit 1150 is an ear hole open, it can be said to have a sound permeability.
[0055]
　Sound generating unit 1151 has been disposed at a location spaced from the ear canal of the user, it is possible to prevent leakage to the outside of the generated sound. Since the other end of the sound guide portion 1152 is attached so as to face the back side of the ear canal, the air vibration of sound generated will release in perception of the eardrum, even by reducing the output of sound generating unit 1151, in sound output hole of the sound guide portion 1152 and you can obtain a sufficient sound quality.
[0056]
　Also, the directivity of the air vibrations emitted from the other end of the sound guide portion 1152 also contributes to the prevention of sound leakage. Air vibrations are emitted from the other end of the sound guide portion 1152 toward the interior of the ear canal. Ear canal, bore to exit from the ear canal entrance inside the beginning eardrum, that is, a closed space in which the cylindrical draw curve S-shaped, generally a length of approximately 25 to 30 mm. The other end air vibrations that are emitted towards the back of the ear canal from the sound guide 1152, and reaches the directional to the eardrum I following, some is reflected. The air vibrations from the increased sound pressure in the ear canal, inter alia improved low frequency sensitivity (gain). On the other hand, outer or outside the ear canal is an open space. Therefore, the other end air vibrations emitted outside the ear canal from the sound guide part 1152, there is no directivity and is emitted to the outside, sharply attenuated.
[0057]
　Strictly speaking, in the state where the ring body 1121 is engaged with beads and chopped traces, the other end of the sound guide portion 1152 is a sound output hole, rather than near the ear canal entrance faces rather cavum conchae it is preferable. Therefore, the ring member 1121, and that the audio output hole faces the external auditory canal entrance, and supports tilt the other end of the sound guide portion 1152 at an angle. Because, in order to keep the sensitivity of the low frequency component, it is because it very important that the hole directions of emission direction and the ear canal of the sound from the other end of the sound guide portion 1152 matches. On the other hand, the other end of the sound guide portion 1152 is supported by the ring member 1121 so as to face the horizontal, the majority of the air vibrations that are emitted from the other end of the sound guide portion 1152 is reflected by the concha cavity sister, less likely to be propagated to the ear canal.
[0058]
　In FIGS. 14 and (A) (B) shows the respective top view and a cross-sectional view of the ring member 1121 coupled with the vicinity of the other end of the sound guide portion 1152. Further, in FIG. 15 shows a horizontal cross-section in the vicinity of the left ear of the user's head to the ring member 1121 is locked by beads and chopped scars left ear. However, in each of FIGS. 14 and 15, for simplification of the drawing, the sound collection unit 1110 and arms 1122-1124 are omitted.
[0059]
　As already described with reference to FIG. 13, the ring member 1121 is inserted into the cavum conchae, it passes through a valley of the sound guide portion 1152 beads and chopped marks attached to the ring member 1121, a ring member 1121 and chopped Jewel It is engaged so as to get caught in the marks. Then, as can be seen from FIG. 15, but is inclined from the hole direction of the ear canal when the ring member 1121 is engaged by the inner wall of the beads and chopped marks or tragus, the other end of the sound output holes in the sound guide portion 1152, and has a posture directed to the ear canal. That is, the hole direction of the discharge direction and the ear canal of the sound from the other end of the sound guide portion 1152 matches.
[0060]
　The sound pickup apparatus 1100 with the audio output unit 1150, when used in the sound collection unit 1110 itself, as described in Example 1, the sound collection unit 1110 from having acoustically transparent in the ear canal open, the ear canal calculation of binaural recording and head-related transfer function considering reflected sound from the shape and the eardrum, it is possible to realize a virtual sound image localization. In addition, by simultaneously utilizing sound pickup unit 1110 at the time of audio reproduction according to the sound output section 1150, it is possible to realize noise cancellation Considering reflected sound from the ear canal shapes and eardrum.
[0061]
　Also, the sound collection device 1100 with the audio output unit 1150, even as the sound output section 1150 itself, is characterized in that it is ear hole open. The advantages of the audio output unit 1150 of the ear hole open, are summarized below.
[0062]
(1) The user in mounting the collection device 1100 with audio output unit 1150 can also listen to ambient sound natural. Therefore, space grasp, danger appreciated, such as the grasp of the subtle nuances of the time of conversation and conversation, can be used normally the function of human beings that is dependent on the auditory characteristics.
[0063]
(2) collecting apparatus 1100 with the audio output unit 1150, because it does not block the ear canal at the time of mounting, as viewed from the others, and the good appearance even speak. In addition, the user wearing the collection device 1100 with an acoustic output unit 1150, always because the ambient sound is heard, as human nature, from the acoustic information, such as footsteps When approaching a person, in the direction of "sound body of changing the direction ", take not a little passive attitude such as" in the direction of the sound move the line of sight ". Such a behavior, because it gives the impression that "may speak" to the others, does not interfere with the communication between people.
[0064]
(3) collecting apparatus 1100 with the audio output unit 1150 is not affected by the self-generating system noise sound. The other end of the sound guide portion 1152 is a sound output hole in the ear canal when wearing, since no contact with the inner wall of the ear canal, or the user's own voice, beating sound, chewing sounds, it sounds when swallowing saliva, blood flow sound, breath sounds, vibration noise transmitted through the body when walking, not affected by the rustling of clothes sound, such as a code. In addition, the frictional sound of the earpiece and the ear canal inner wall does not occur. Further, since the ear hole is released, there is no fear of confined humidity of the ear canal.
[0065]
(4) collecting apparatus 1100 with the audio output unit 1150, a good attachment of the ear, can be absorbed positioning variations due to such individual differences in ear size and shape. It is engaged with the inner wall of the ring body 1121 beads and chopped marks or tragus, the sound output holes at the other end of the sound guide portion 1152 is configured to support so as to face the entrance of the ear canal. Therefore, the sound conductor as in the case of ear type audio output apparatus wrap helix, does not require a length adjustment. Further, by the ring member 1121 is engaged with the inner wall of the beads and chopped marks or tragus, it is possible to maintain a good mounting state. Also, the sound guide part 1152 has the structure that is extended to the vicinity of the ear canal entrance from the auricle back folded in earlobe, the user glasses or spectacle-type wearable device, be used in combination Ear devices, these It does not interfere at all with other devices.
[0066]
(5) sound guide section 1152, to propagate the sound generated by the sound generating unit 1151 from the back of the ear at the shortest distance to the vicinity of the entrance of the ear canal. Therefore, compared with the ear type audio output apparatus, an amount corresponding to the length of the sound guide part is reduced, it is possible to suppress the acoustic loss to a minimum, and a sound generation section 1151 to a low output, good sound quality it is possible to obtain. As mentioned in addition, high dimensional tolerances of the sound generating unit 1151, it is possible to design in accordance with the acoustic band and sound pressure required.
[0067]
　In FIGS. 16 to 20 show the external appearance of the sound collection device 1600 with audio output unit according to another configuration example, while changing the viewing direction. In FIGS. 16 to 20, only does not show the right and left of one of the collecting apparatuses 1600, wearing the right pair of sound output function and collection device 1600 to each ear of the left and right user, Ya binaural recording binaural reproduction, it is to be understood that realized such as noise canceling.
[0068]
　Collecting apparatus 1600 includes a sound collection unit 1610, and a holding portion for holding the sound pickup unit 1610, and a sound output section 1650.
[0069]
　In the illustrated collection device 1600, sound collection unit 1610 and the holding portion has almost the same configuration as the sound collecting device 100 shown in FIG. That is, the sound collection unit 1610 is, for example, a microphone and a diameter of 2.5 mm approximately cylindrical. The holding portion (in other words, has an opening for transmitting sound) hollow ring body 1621, it constituted a plurality of arms 1622,1623 ... in supporting the sound pickup unit 1610. In the illustrated example, the ring member 1621, although the O-shaped configuration, may be in the form of a C-shaped. Each arm supports a sound pickup unit 1610 at the other end with connecting the ring member 1621, respectively one end. The sound collection unit 1610, the sound collection direction (or microphone hole 1611 serving as a sound pickup hole) is, the back side of the ear canal (i.e., the eardrum side) but is supported so as to face the outside world. Incidentally, the sound collection direction of the collected sound unit 1610 may also be referred to as the back side of the ear canal (i.e., the eardrum side) be directed to the outside of the ear canal than face the inner wall of the or ear canal preferable.
[0070]
　That sound pickup unit 1610 has an acoustically transparent in the ear canal open, is supported by a closer to the eardrum within the ear canal, that it can pick up ambient sound in the near state by the sound that the user hears, and, for each user the head or body, not only the part of the human body such as the earlobe, consideration of the effects of reflected sound from the ear canal shape and tympanic membrane that it is possible to obtain the binaural recording and head-related transfer function, as shown in FIG. 1 is as already described with reference to such.
[0071]
　On the other hand, the sound output section 1650, with a built-in sound generator for generating a sound, and a sound guide portion 1651 of the short hollow tubular. The sound generating portion is constituted from the sound device produces a sound pressure changes, such as dynamic drivers having a diameter of about 9 mm, the housing is integral with a portion of the ring body 1621. In the example shown in such FIG. 16, but the housing of the sound output unit 1650 is coupled to the outer surface of the ring member 1621, compact design and to bind with the inner surface of the ring body 1621 because it is, the sound output portion 1650 housing designed to bind near the center and the ring member 1621 is also conceivable. Ring body 1621 is a size of, for example, about 13.5 mm, can be attached to the user of the cavum conchae. The size of the cavity of the concha there are individual differences, but the outer diameter of the ring member 1621 (or width) when greater than 16 mm, the more people that can not be inserted ring body 1621 in cavum conchae. Also, the sound guide portion 1651, the front surface of the acoustic output portion 1650 projecting from the entrance direction of the ear canal in (diaphragm arranged in a housing (the front side will be described later)), consists of a short hollow tube member. Opening at the tip of the sound guide portion 1651 has a sound output hole, the sound guide part 1651, and outputs toward the sound generated by the sound output section 1650 in the entrance of the ear canal.
[0072]
　21 and 22 are sectional views of the sound output portion 1650, shows the internal configuration of the housing. However, Figure 21 mainly shows a cross-section of the sound output section, FIG. 22 shows a cross section including an exhaust (described later). Further, for simplification of the drawing, it is omitted as appropriate for the sound pickup unit 1610 and the holding portion. Incidentally, pronunciation element shown in FIG. 21 and FIG. 22 is a dynamic type driver, it is also possible to use a type of electrostatic driver causing Similarly sound pressure changes. Alternatively, or using completely different types sound device, such as a balanced armature type or a piezoelectric type may be or using a hybrid which combines the plurality of types of sound elements.
[0073]
　Inside the audio output unit 1650, to face in the magnetic circuit formed by the magnet 2101, the vibrating plate 2103 having a voice coil 2102 is disposed. Further, the inside of the audio output unit 1650, by the diaphragm 2103, is partitioned into the diaphragm front space (front cavity) 2104 and the diaphragm back space 2105 (back cavity). Then, the signal line when the magnetic field in response to the audio signal inputted to the voice coil 2102 via the (not shown) is changed, the diaphragm 2103 is the front-rear direction by the magnetic force of the magnet 2101 (winding direction of the voice coil 2102) by operating the change in air pressure between the diaphragm front space 2104 between the diaphragm back space 2105 is generated, which is acoustic.
[0074]
　Sound generated by the diaphragm front space 2104 is propagated through the tube of the sound guide portion 1651 and is emitted towards the back of the ear canal from the sound output holes at the tip, then it reaches the eardrum.
[0075]
　On the other hand, as sound generated by the diaphragm back space 2105 (diaphragm front space 2104 and the negative-phase sound) does not interfere with vibration of the diaphragm 2103, the exhaust hole for discharging to the outside of the housing of the sound output section 1650 is necessary.
[0076]
　Sound pickup apparatus 1600 includes an acoustic output unit 1650 is assumed to be used by mounting on a user's cavum concha (that will be described later and see FIG. 23). If the drilling of the back like the exhaust hole of the housing of the sound output unit 1650, it means that the sound generated by the diaphragm back space 2105 is released in concha cavity, collected by the sound collection unit 1610 It will be, or a big noise to the reproduced sound generated by the sound output section 1650.
[0077]
　Therefore, as shown in FIG. 22, on the back side of the audio output unit 1650 (diaphragm 2103), the exhaust portion 2201 is disposed. The exhaust unit 2201, a hollow tube with enough length to reach the outside of the through the beads and chopped mark auricle from the back side of the housing of the sound output section 1650, the opening of the tip thereof diaphragm It has an exhaust hole for discharging sound generated in the back space 2105. With such a configuration, the exhaust unit 2201 emits sufficiently spaced from the distal end sound output hole of the collecting sections 1610 and sound guide portion 1651, a sound generated by the diaphragm back space 2105 outside the auricle since it is possible, it is possible to suppress the effect of sound leakage. The exhaust unit 2201 may be shared with the duct for inserting the signal line, such as audio signals and power.
[0078]
　Figure 23 shows a state of mounting the sound output function and collection device 1600 to a user's left ear. 11 Unlike collecting apparatus 1100 shown in such, since the audio output unit 1650 is a diameter of about 9 mm and smaller, be configured sound output portion 1650 integrally with the ring member 1620, and collection device it is possible to mount 1100 in its entirety user cavum conchae, it should be understood that.
[0079]
　In the example shown in FIG. 23, the ring member 1621 is inserted into the ear concha cavity with the acoustic output unit 1650 integrated, in contact with the bottom surface of the cavity of the concha. The exhaust section 2201 which protrudes from the back of the housing of the sound output unit 1650, passes through a valley of beads and chopped marks. Then, the exhaust unit 2201 to get caught in the valleys of the beads and chopped mark, that the ring body 1621 is engaged with the inner wall of the beads and chopped marks or tragus, and collecting apparatus 1600 is suitably attached to the auricle that.
[0080]
　In a state where the ring body 1621 is inserted into the concha cavity is engaged with the inner wall of the beads and chopped marks or tragus as shown in Figure 23, but not visible in FIG. 23, the sound guide part 1651 as the acoustic output aperture of the tip of the posture facing the entrance of the ear canal, sound guide portion 1651 it is projected from the front surface of the housing of the sound output section 1650.
[0081]
　The sound pickup apparatus 1600 when mounted on a user's cavum conchae, the relative positions of the acoustic output aperture of the audio output unit 1650, a microphone hole 1611 is a sound pickup hole collecting sections 1610 is kept constant It is to be understood that. Further, when mounting the sound collection device 1600 to a user of the cavum conchae, the sound output holes of the audio output unit 1650, than microphone hole 1611 is a sound pickup hole collecting sections 1610, outer ear hole of the user is disposed, it is to be understood that. Microphone hole 1611 is basically are arranged substantially at the center of the opening of the ring body 1621.
[0082]
　Exhaust unit 2201 (occurred back cavity, the front cavity and the negative-phase sound) unwanted acoustic purpose of discharging out of the housing of the sound output section 1650, and also serves as a duct for the signal line from the viewpoint of an inner diameter is preferably as large as possible. On the other hand, as shown in FIG. 23, an exhaust unit 2201 passes through the valley of the beads and chopped marks. Therefore, when the outer diameter of the exhaust section 2201 to more than gaps beads and chopped marks (e.g. 3.6 mm), it is concerned to provide tightness to the user's ear for cleavage of beads and chopped mark is widened.
[0083]
　Ring body 1621 is a hollowed structure, almost all of the inner is opening. The housing of the sound output section 1650 since the integral part of the ring member 1621, does not interfere at all inside the opening of the ring body 1621. Therefore, even when the audio output unit 1650 is inserted into the collecting apparatus 1600 whole concha cavity that together, does not block the ear canal of the user. In other words, the ear canal of the user is open, the sound collection device 1600 with the audio output unit 1650 is an ear hole open, it can be said to have a sound permeability.
[0084]
　Audio output unit 1650, because it is disposed in the concha cavity, even by reducing the output, it is possible to obtain sufficient sound quality sound output hole in the tip of the sound guide portion 1651. Therefore, it is possible to prevent leakage to the outside of the generated sound of the sound output section 1650.
[0085]
　Also, the directivity of the air vibrations emitted from the tip of the sound guide portion 1651 also contributes to the prevention of sound leakage. Air vibrations are emitted from the tip of the sound guide portion 1651 toward the interior of the ear canal. Ear canal is a closed space in which the cylindrical draw curve S-shaped, generally a length of approximately 25 to 30 mm. Tip air vibrations that are emitted towards the back of the ear canal from the sound guide part 1651, and reaches the directional to the eardrum I following, some is reflected. The air vibrations from the increased sound pressure in the ear canal, inter alia improved low frequency sensitivity (gain). On the other hand, outer or outside the ear canal is an open space. Thus, air vibrations emitted outside the ear canal from the distal end of the sound guide portion 1651, there is no directivity and is emitted to the outside, sharply attenuated. In a state where the ring body 1621 is engaged with beads and chopped mark, the tip of the sound guide portion 1651 is a sound output hole, rather than near the ear canal entrance, it is preferable that the face rather cavum conchae.
[0086]
　The sound pickup apparatus 1600 with the audio output unit 1650, when used in the sound collection unit 1610 itself, as described in Example 1, the sound collection unit 1610 from having acoustically transparent in the ear canal open, the ear canal calculation of binaural recording and head-related transfer function considering reflected sound from the shape and the eardrum, it is possible to realize a virtual sound image localization. In addition, by simultaneously utilizing sound pickup unit 1610 at the time of audio reproduction according to the sound output section 1650, it is possible to realize noise cancellation Considering reflected sound from the ear canal shapes and eardrum.
[0087]
　Also, the sound collection device 1600 with the audio output unit 1650, even as the sound output section 1650 itself, is characterized in that it is ear hole open. Therefore, similarly to the sound collecting device 1100, having the above-described advantages (1) to (4).
[0088]
　Figure 24 to 29 illustrate further the appearance of the audio output unit with a sound pickup apparatus 2400 according to another example configuration, while changing the viewing direction. Further, for reference, in Figure 30, by omitting the sound pickup unit and its mounting portion, shows (sound output side) elevational view of the audio output unit. In FIGS. 24 through 29, only does not show the right and left of one of the collecting apparatuses 2400, wearing the right pair of sound output function and collection device 2400 to each ear of the left and right user, Ya binaural recording binaural reproduction, it is to be understood that realized such as noise canceling.
[0089]
　Collecting apparatus 2400 includes a sound collection unit 2410, a holding portion 2420 for holding the sound pickup unit 2410, and a sound output section 2450.
[0090]
　Audio output unit 2450 is composed of a sound device which produces a sound pressure changes, such as dynamic drivers of about 6 millimeter diameter, the housing forms a disc shape, combined with the integrated part of the ring-shaped holding portion 2420 doing. In the illustrated example, the holding unit 2420, although the O-shaped ring-shaped, may be in the form of a C-shaped. In the example shown in such FIG. 24, the design and although the housing of the sound output unit 2450 is coupled with the inner surface of the ring-shaped holder 2420, which binds to the outer surface of the ring-shaped holding portion 2420 because it is small, possible also designed to bind to a ring-shaped holding portion 2420 near the center of the housing of the sound output section 2450. Holding unit 2420 is the size of, for example, about 13.5 mm, can be attached to the user of the cavum conchae. Although there are individual differences in the size of the cavity of the concha, the outer diameter of the holding portion 2420 (or width) when greater than 16 mm, the person can not be inserted the holding section 2420 in the cavity of the concha is increased. Further, on the front side of the audio output unit 2450 (front side of the diaphragm disposed within the housing (not shown)), the sound output holes 2451 crescent for outputting a sound generated is bored.
[0091]
　On the other hand, the sound collection unit 2410 has almost the same configuration as the sound collecting unit 110 of the sound pickup apparatus 100 shown in FIG. That is, the sound collection unit 2410 is, for example, a microphone and a diameter of 2.5 mm approximately cylindrical. Sound pickup unit 2410, the ear canal when attached to the front (sound pickup device 2400 to the user's ear by a ring-like holding portion 2420 of (in two in the illustrated example) more on the front side of the housing of the sound output section 2450 It is supported so as to protrude to the back direction). The sound collection unit 2410, the sound collection direction (or microphone hole 2411 serving as a sound pickup hole) is, the back side of the ear canal (i.e., the eardrum side) but is supported so as to face the outside world (Fig. 28 checking). Incidentally, the sound collection direction of the collected sound unit 2410 may also be referred to as the back side of the ear canal (i.e., the eardrum side) be directed to the outside of the ear canal than face the inner wall of the or ear canal preferable.
[0092]
　That sound pickup unit 2410 has an acoustically transparent in the ear canal open, is supported by a closer to the eardrum within the ear canal, that it can pick up ambient sound in the near state by the sound that the user hears, and, for each user the head or body, not only the part of the human body such as the earlobe, consideration of the effects of reflected sound from the ear canal shape and tympanic membrane that it is possible to obtain the binaural recording and head-related transfer function, as shown in FIG. 1 is as already described with reference to such.
[0093]
　The internal structure of the audio output unit 2450, not shown, as well as the detailed description. Basically, similar to FIG. 21 and FIG. 22, within the housing of the sound output section 2450, a diaphragm having a voice coil is disposed opposite to the magnetic circuit formed by the magnet, the voice to the voice coil a signal magnetic field when the input is changed to the vibration plate by the magnetic force of the magnet is operated in the longitudinal direction, and generates an acoustic in front space of the diaphragm.
[0094]
　Sound generated by the sound elements in the audio output unit 2450, when it is emitted towards the back of the ear canal from the sound output holes formed in the front surface of the housing of the sound output section 2450, then it reaches the eardrum.
[0095]
　As can be seen from Figure 30, the housing of the sound output section 2450, the sound output holes 2451 in which the crescent shape is formed in place closer to the periphery rather than the center of the ring-shaped holding portion 2420. The sound output holes 2451 are arranged outside the ring-shaped holding portion 2420 than microphone hole 2411 of the sound pickup unit 2410, reproduced sound emitted from the sound output holes 2451 is transmitted from the outside world into the ear canal This is to prevent Awa as much as possible interference with the surrounding sound is picked up by the sound pickup unit 2410. If the housing front face of the audio output unit 2450, when bored acoustic output hole 2451 in the vicinity of the ring center of the holding portion 2420, the audio output hole 2451 facing microphone aperture 2411 and short distance collecting sections 2410 to be sound collection unit 2410 will result in collecting reproduced sounds of the sound output unit 2450 instead of the ambient sound.
[0096]
　Further, on the rear side of the housing of the sound output section 2450, a duct 2460 is connected for inserting the signal line, such as audio signals and power. When using the sound element causing a pressure change as a dynamic driver or electrostatic driver audio output unit 2450, hyperbaric (front cavity opposite phase sound generated in the housing (back cavity) ) it is necessary to escape out of the housing, but can also serve the duct 2460 as an exhaust unit. Of the duct 2460, the location spaced from the holding portion 2420, (see FIG. 29) in which the exhaust hole 2461 is bored for releasing such acoustic. Exhaust holes 2461, so the sound collection unit 2410 and a sound output holes 2451 are sufficiently spaced apart, the acoustic discarded may become a noise of the reproduced sound of the audio output unit 2450 or picked up by the sound pickup unit 2410 no.
[0097]
　Figure 31 shows a state of mounting the sound collection device 2400 with audio output unit to the user's left ear. Like the sound collecting device 1600 shown in FIG. 16, since the sound output section 2450 is approximately 6 mm and a small diameter, the ring-shaped holder 2420 is integrated with the audio output unit 2450 of the user cavum conchae It can be attached to, it should be understood that.
[0098]
　In the example shown in FIG. 31, a ring-shaped holding portion 2420 is inserted into the concha cavity, in contact with the bottom surface of the cavity of the concha. Further, the one place of the inner surface of the holding portion 2420 attached audio output unit 2450, a duct 2460 is further coupled to the rear of the housing of the sound output unit 2450, it passes through a valley of beads and chopped marks. Then, the duct 2460 is to get caught in the valleys of the beads and chopped traces, the holding portion 2420 that is engaged to the inner wall of the beads and chopped marks or tragus, and collecting apparatus 2400 is suitably attached to the auricle .
[0099]
　In a state where the holding portion 2420 is inserted into the concha cavity is engaged with the inner wall of the beads and chopped marks or tragus as shown in Figure 31, the front surface of the housing of the sound output section 2450, the ear canal want the sound output holes 2451 are understood to be drilled so as to face the entrance.
[0100]
　The sound pickup apparatus 2400 when mounted on a user's cavum conchae, the relative positions of the acoustic output aperture of the audio output unit 2450, a microphone hole 2411 is a sound pickup hole collecting sections 2410 is kept constant It is to be understood that. Further, when mounting the sound collection device 2400 to a user of the cavum conchae, the sound output holes of the audio output unit 2450, than microphone hole 2411 is a sound pickup hole collecting sections 2410, outer ear hole of the user is disposed, it is to be understood that. Microphone hole 2411 is basically are arranged substantially at the center of the opening of the ring body 2421.
[0101]
　Duct 2460, from the viewpoint also serves as a discharge portion for discharging the unnecessary sound, inner diameter is preferably as large as possible. On the other hand, as shown in FIG. 31, the duct 2460 passes through the valley of the beads and chopped marks. Therefore, when the outer diameter of the duct 2460 to more than beads and chopped scars gap (e.g., 3.6 mm), it is concerned to provide tightness to the user's ear for cleavage of beads and chopped mark is widened.
[0102]
　Holding unit 2420 is a ring-shaped i.e. hollowed structure, almost all of the inner is opening. The housing of the compact audio output unit 2450 is bound to the one position of the inner surface of the holding portion 2420, it does not inhibit the opening of the holding portion 2420. Therefore, even when the audio output unit 2450 is inserted into the entire collecting apparatus 2400 is concha cavity that together, does not block the ear canal of the user. In other words, the ear canal of the user is open, the sound collection device 2400 with the audio output unit 2450 is an ear hole open, it can be said to have a sound permeability.
[0103]
　Audio output unit 2450, because it is disposed in the concha cavity, even by reducing the output, it is possible to obtain sufficient sound quality sound output holes 2451. Therefore, it is possible to prevent leakage to the outside of the generated sound of the sound output section 2450.
[0104]
　Also, the directivity of the air vibrations emitted from the sound output holes 2451 also contributes to the prevention of sound leakage. Air vibrations are emitted toward the inside of the ear canal from the sound output holes 2451. Ear canal is a closed space in which the cylindrical draw curve S-shaped, generally a length of approximately 25 to 30 mm. Air vibrations emitted toward the back of the ear canal from the sound output holes 2451, and reaches the directional to the eardrum I following, some is reflected. The air vibrations from the increased sound pressure in the ear canal, inter alia improved low frequency sensitivity (gain). On the other hand, outer or outside the ear canal is an open space. Thus, air vibrations emitted outside of the ear canal from the sound output holes 2451, there is no directivity and is emitted to the outside, sharply attenuated. In a state where the ring-shaped holder 2420 is engaged with beads and chopped mark, the sound output holes 2451 are not near the ear canal entrance, it is preferable that the face rather cavum conchae.
[0105]
　The sound pickup apparatus 2400 with the audio output unit 2450, when used in the sound collection unit 2410 itself, as described in Example 1, the sound collection unit 2410 from having acoustically transparent in the ear canal open, the ear canal calculation of binaural recording and head-related transfer function considering reflected sound from the shape and the eardrum, it is possible to realize a virtual sound image localization. In addition, by simultaneously utilizing sound pickup unit 2410 at the time of audio reproduction according to the sound output section 2450, it is possible to realize noise cancellation Considering reflected sound from the ear canal shapes and eardrum.
[0106]
　Also, the sound collection device 2400 with the audio output unit 2450, even as the sound output section 2450 itself, is characterized in that it is ear hole open. Therefore, similarly to the sound collecting device 1100, having the above-described advantages (1) to (4).
[0107]
　For reference, the structure of the auricle, previously described with reference to FIG. 34. Broadly speaking the structure of the auricle, in order from the outside, there helix, antihelix, concha, the tragus. Further, on the outside of the tragus, it has antitragus a projection forming a pair. Notches located between the tragus and antitragus is a tragus and chopped mark. The lower end of the auricle is earlobe.
[0108]
　Helix is ​​at the outermost periphery of the ear, a portion for forming the contour of the ear. Helix, after bending inward in the vicinity of the center of the ear (near top of the ear canal entrance) is near the center of the ear and substantially horizontally passes, and has a projection that divides the concha vertically . Mimiwaashi are nearby helix is ​​bent toward the inside of the auricle, helix root is a partial coming enters the concha of Mimiwaashi.
[0109]
　Antihelix is ​​a ridge extending from the antitragus upwards, corresponding to the edge of the concha. The ridge line of the pair helix bifurcated branches of above say antihelix on legs, corresponding to the upper side of the triangular fossa. Further, the branch below say antihelix under legs, corresponding to the lower side of the triangular fossa.
[0110]
　Concha is, in the center of the ear, is the most recessed portion, on the border of the helix root, and concha boat made from an elongated recess in the upper half, divided into ear instep concha of the lower half. In addition, in the vicinity of the tragus of the cavity of the concha, there is the ear canal entrance.
[0111]
　Sankaku窩 is depression of triangle having the antihelix on legs and antihelix under legs and helix three sides. Further, scaphoid fossa is between antihelix and the helix is ​​depression is above the outer portion in terms of the entire auricle.
Industrial Applicability
[0112]
　Above with reference to the specific embodiments have been described in detail the technology disclosed in the present specification. However, it is obvious that those skilled in the art without departing from the scope of the technology disclosed herein can make modifications and substitutions of the embodiments.
[0113]
　Sound pickup device and a sound output function and collection device applying the technology disclosed in the present specification is used by mounting on the user's ear, the conventional binaural microphone or earphone in that "the ear canal open type" It is very different. Therefore, the sound collection device according to the technology disclosed herein, while also realizing a listening characteristic of the non-wearing state equivalent ambient sound in the attached state, the reflection from the diffraction or reflection and eardrum at the inner wall of the ear canal effect precise and binaural recording in consideration also of, in consideration of the influence of the reflected sound from the ear canal shape and the eardrum, it is possible to determine the accurate HRTF representing the change in sound. Further, even in a state of mounting such a sound collecting apparatus to the ear, does not seem to block the ear canal of the user from the surrounding people, there are features such.
[0114]
　In short, it had been described technique disclosed in this specification by way of exemplary embodiments should not be construed as limiting the contents of this specification. In order to determine the gist of the technology disclosed herein, it should be referred to the claims.
[0115]
　Incidentally, the technique disclosed herein, it is also possible to adopt the following configurations.
(1) and the sound pickup section,
　it has an acoustic transmitting part, and a holder that holds the sound pickup by the user's ear canal
and collection device comprising a.
(2) the holding part consists of one or more arms for supporting a ring member having an opening serving as the acoustically transparent portion, the sound collection unit at the other end with one end connected to the ring body,
the sound collection device according to (1).
(3) the ring body is inserted into the user's cavum conchae are locked near the beads and chopped mark,
the sound collection device according to (2).
(4) the holding portion is made of an elastic member having a vent as the acoustically transparent portion,
the sound collection device according to (1).
(5) the holding part consists of one or more arms for supporting the star-shaped body having an opening as the acoustically transparent portion, the sound collection unit at the other end with one end connected to the star-shaped body ,
sound collection device according to (1).
(6) the holding portion, the holding of the sound pickup toward the outside of the ear canal microphone hole,
and collecting apparatus according to any one of (1) to (5).
(7) the holding part holds said sound pickup as microphone hole becomes deeper side than the entrance of the ear canal,
sound collection device according to any one of (1) to (6).
(8) further includes an acoustic output unit,
the sound collection device according to any one of (1) to (7).
(9) when mounting the collection device on the user's ear, the relative position between the acoustic output hole and the sound pickup of sound pickup hole of the sound output unit is kept constant,
the above (8) sound collection device according.
(10) when mounting the collection device to the ear of the user, said sound output hole of the acoustic output unit is disposed on the outside of the ear than the sound pickup hole of the sound pickup,
(8) or ( sound pickup apparatus according to any one of 9).
(11) the audio output unit includes a sound generator, a sound guiding part of the hollow structure the sound generating unit is propagated to the other end is taken from one end of the sound generated,
the above (8) or (10) sound collection device according to any one.
(12) the sound generating unit is disposed on the back of the user's ear,
　the sound one end of the conductive portion is connected to the sound generator,
　the sound output hole of the other end of the sound guiding part is the holding portion It is retained within the through user's ear, the
sound collection device according to (11).
(13) the sound guiding part, the are inserted into beads and chopped marks near the other end,
the sound collection device according to (12).
(14) the audio output unit is integrated with a portion of the holding portion made of a ring body,
the sound collection device according to any one of the above (8) or (10).
(15) the housing of the sound output unit in a state where the ring body is inserted into the user's cavum conchae, and a sound guide portion having an acoustic output aperture at the tip projecting in the direction of the entrance of the ear canal,
sound pickup apparatus according to (14).
(16) the audio output unit is coupled to the inner surface of the holding portion made of a ring body,
the sound collection device according to any one of the above (8) or (10).
(17) further includes an acoustic output hole disposed on the front side of the housing of the sound output unit,
wherein the sound pickup device in the above (16).
(18) further comprises an exhaust unit on the back of the housing of the sound output unit,
sound collection device according to any one of the above (14) or (17).
(19) The exhaust unit has an outer exhaust hole of the ear through the mark and chopped tragus from the rear side of the housing,
the sound collection device according to (18).
(20) further comprising an insertion signal line to the exhaust portion,
the sound collection device according to any one of the above (18) or (19).
DESCRIPTION OF SYMBOLS
[0116]
　100 ... sound collecting device
　110 ... sound pickup unit, 111 ... microphone hole
　121 ... ring body, 122-124 ... arm　
　700 ... sound collecting device
　710 sound pickup unit, 711 ... microphone hole
　720 ... holding portion
　900 ... sound collecting device
　910 ... sound pickup unit, 911 ... microphone hole
　921 ... asteroid, 922-926 ... arm
　1100 ... (with sound output function) and collection device
　1110 ... sound pickup unit, 1111 ... microphone hole
　1121 ... ring body, 1122, 1123 ... arm
　1150 ... audio output unit, 1151 ... sound generating unit, 1152 ... sound guide part
　1600 ... (with sound output function) and collection device
　1610 ... sound pickup unit, 1611 ... microphone hole
　1621 ... ring body, 1622,1623 ... arm
　1650 ... audio output unit, 1651 ... sound guide section
　2101 ... magnet, 2102 ... voice coil
　2103 ... vibration plate
　2201 ... exhaust section
　2400 ... sound collection instrumentation
　2410 ... sound pickup unit, 2411 ... microphone hole
　2420 ... holding portion
　2450 ... audio output unit, 2451 ... sound output holes
　2460 ... duct, 2461 ... exhaust hole

The scope of the claims
[Requested item 1]
　A sound pickup unit,
　has an acoustic transmitting part, and a holder that holds the sound pickup by the user's ear canal
and collection device comprising a.
[Requested item 2]
　The holding portion is comprised of one or more arms for supporting a ring member having an opening serving as the acoustically transparent portion, the sound collection unit at the other end with one end connected to the ring body,
to claim 1 sound collection device according.
[Requested item 3]
　The ring body is inserted into the user's cavum conchae are locked near the beads and chopped mark,
the sound collection device according to claim 2.
[Requested item 4]
　The holding portion is made of an elastic member having a vent as the acoustically transparent portion,
the sound collection device according to claim 1.
[Requested item 5]
　The holding portion is comprised of one or more arms for supporting the star-shaped body having an opening as the acoustically transparent portion, the sound collection unit at the other end with one end connected to the star-shaped body,
claim sound pickup apparatus according to 1.
[Requested item 6]
　The holding portion holds said sound pickup toward the outer side of the ear canal microphone hole,
pickup device according to Claim 1.
[Requested item 7]
　The holding portion holds the sound pickup as microphone hole becomes deeper side than the entrance of the ear canal,
sound collection device according to claim 1.
[Requested item 8]
　Further comprising a sound output unit,
sound collection device according to claim 1.
[Requested item 9]
　When mounting the collection device on the user's ear, the relative position between the acoustic output hole and the sound pickup of sound pickup hole of the sound output unit is kept constant,
the sound collection according to claim 8 apparatus.
[Requested item 10]
　The sound collection device when mounted on a user's ear, the acoustic output aperture of the acoustic output unit is disposed on the outside of the ear than the sound pickup hole of the sound pickup,
pickup device according to Claim 8 .
[Requested item 11]
　The sound output unit includes a sound generator, a sound guiding part of the hollow structure the sound generating unit is propagated to the other end is taken from one end of the sound generated,
and collecting apparatus according to claim 8.
[Requested item 12]
　The sound generating portion is disposed on the back of the user's ear,
　the one end of the sound guide part is connected to the sound generator,
　the sound output hole of the other end of the sound guiding part of the user by the holding portion It is held in the auricle,
the sound collection device according to claim 11.
[Requested item 13]
　The sound guide part is inserted into the beads and chopped mark at the other end around,
pickup device according to Claim 12.
[Requested item 14]
　The sound output unit is integrated with a portion of the holding portion made of a ring member,
pickup device according to Claim 8.
[Requested item 15]
　The housing of the acoustic output unit, in a state where the ring body is inserted into the user's cavum conchae, and a sound guide portion having an acoustic output aperture at the tip projecting in the direction of the entrance of the ear canal,
claim 14 sound pickup apparatus according to.
[Requested item 16]
　The sound output unit is coupled to the inner surface of the holding portion made of a ring member,
pickup device according to Claim 8.
[Requested item 17]
　Further comprising a sound output hole disposed on the front side of the housing of the sound output unit,
wherein the sound pickup apparatus in claim 16.
[Requested item 18]
　Further comprising an exhaust unit on the back of the sound output section of the housing,
the sound collection device according to claim 14.
[Requested item 19]
　It said exhaust portion passes through the beads and chopped mark from the back side of the housing has an outer exhaust hole of the auricle,
the sound collection device according to claim 18.
[Requested item 20]
　Further comprising an insertion signal line to the exhaust portion,
the sound collection device according to claim 18.